FI954104A - Metod för processkontroll genom mätning av träflis - Google Patents
Metod för processkontroll genom mätning av träflis Download PDFInfo
- Publication number
- FI954104A FI954104A FI954104A FI954104A FI954104A FI 954104 A FI954104 A FI 954104A FI 954104 A FI954104 A FI 954104A FI 954104 A FI954104 A FI 954104A FI 954104 A FI954104 A FI 954104A
- Authority
- FI
- Finland
- Prior art keywords
- control method
- method based
- process control
- wood chip
- supplied
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/46—Wood
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C7/00—Digesters
- D21C7/12—Devices for regulating or controlling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/34—Paper
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Paper (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Debarking, Splitting, And Disintegration Of Timber (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9300696A SE500994C2 (sv) | 1993-03-02 | 1993-03-02 | Förfarande för styrning av en defibreringsprocess medelst mätning av den tillförda flisens bulkdensitet |
| PCT/SE1994/000178 WO1994020671A1 (en) | 1993-03-02 | 1994-03-02 | Method for controlling a process by measurement of wood chips |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI954104A true FI954104A (sv) | 1995-09-01 |
| FI954104A0 FI954104A0 (sv) | 1995-09-01 |
Family
ID=20389087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI954104A FI954104A0 (sv) | 1993-03-02 | 1995-09-01 | Metod för processkontroll genom mätning av träflis |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0738342B1 (sv) |
| JP (1) | JPH08507335A (sv) |
| AT (1) | ATE183787T1 (sv) |
| AU (1) | AU6225094A (sv) |
| CA (1) | CA2156819A1 (sv) |
| DE (1) | DE69420287D1 (sv) |
| FI (1) | FI954104A0 (sv) |
| SE (1) | SE500994C2 (sv) |
| WO (1) | WO1994020671A1 (sv) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19510008C2 (de) * | 1995-03-23 | 1997-01-30 | Siemens Ag | Verfahren und Vorrichtung zur Prozeßführung bei der Zellstoff- und/oder Papierherstellung |
| WO2002065117A1 (en) * | 2001-02-13 | 2002-08-22 | Canterprise Limited | Method of selecting wood for mechanical pulping |
| FI123011B (sv) * | 2005-01-05 | 2012-09-28 | Metso Paper Inc | Förfarande för att reglera en cellulosakokprocess |
| EP2158356A4 (en) | 2007-05-04 | 2013-07-31 | Quebec Centre Rech Ind | SYSTEM AND METHOD FOR OPTIMIZING THE REFINING OF A GRANULAR LIGNOCELLULOSIC MATERIAL |
| EP2085509A3 (en) * | 2008-02-01 | 2010-12-29 | Andritz, Inc. | Method for measuring and controlling digester or impregnation vessel chip level by means of measuring chip pressure |
| CA2714235C (en) | 2010-04-27 | 2014-01-07 | Centre De Recherche Industrielle Du Quebec | Method and system for stabilizing dry-based density of wood chips to be fed to a chip refining process |
| CN102094344B (zh) * | 2010-12-08 | 2012-07-25 | 陕西科技大学 | 一种废纸碎解方法 |
| ES2730759T3 (es) * | 2010-12-22 | 2019-11-12 | Stora Enso Oyj | Un método para controlar un proceso de fabricación de pasta de una manera predictiva |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4239590A (en) * | 1979-01-11 | 1980-12-16 | Kamyr, Inc. | Method of maintaining uniformity of fibrous material fed to a continuous digester |
| SE460383B (sv) * | 1985-06-13 | 1989-10-02 | Kamyr Ab | Saett att vid kontinuerlig massakokning, foer styrning av foer behandlingen noedvaendiga maengder aemnen som t ex aanga och kemikalier, kontinuerligt bestaemma volymfloedet per tidsenhet av en stroem av i vaetska suspenderat fibermaterial |
-
1993
- 1993-03-02 SE SE9300696A patent/SE500994C2/sv unknown
-
1994
- 1994-03-02 DE DE69420287T patent/DE69420287D1/de not_active Expired - Lifetime
- 1994-03-02 CA CA002156819A patent/CA2156819A1/en not_active Abandoned
- 1994-03-02 AT AT94909389T patent/ATE183787T1/de active
- 1994-03-02 AU AU62250/94A patent/AU6225094A/en not_active Abandoned
- 1994-03-02 WO PCT/SE1994/000178 patent/WO1994020671A1/en active IP Right Grant
- 1994-03-02 EP EP94909389A patent/EP0738342B1/en not_active Expired - Lifetime
- 1994-03-02 JP JP6519883A patent/JPH08507335A/ja active Pending
-
1995
- 1995-09-01 FI FI954104A patent/FI954104A0/sv unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08507335A (ja) | 1996-08-06 |
| SE500994C2 (sv) | 1994-10-17 |
| DE69420287D1 (de) | 1999-09-30 |
| ATE183787T1 (de) | 1999-09-15 |
| WO1994020671A1 (en) | 1994-09-15 |
| EP0738342B1 (en) | 1999-08-25 |
| SE9300696L (sv) | 1994-09-03 |
| EP0738342A1 (en) | 1996-10-23 |
| AU6225094A (en) | 1994-09-26 |
| SE9300696D0 (sv) | 1993-03-02 |
| FI954104A0 (sv) | 1995-09-01 |
| CA2156819A1 (en) | 1994-09-15 |
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